I think he was referencing moving the current "Tigue" bleachers TO the track/soccer facility. The new grandstand will connect to the bleachers but the heights won't match exactly so they'll have to put a step up/down to match.
After thinking about this I was wondering how they would handle the construction of the planned walkway along the top of the current bleachers when future plans would include the removal of the current bleachers and build out the new grandstand to take their place. I'm assuming they would have planned on how to connect the two so it is seamless.